优化1.2

app/logic/ZoneLogic.php

@@ -647,7 +647,7 @@ class ZoneLogic
                     return ['status' => 1];
                 }
                 if ($sum_amount) {
-                    $usage_rate = round($sum_amount / $estimate_awards_amount,14);
+                    $usage_rate = round($usage_amount / $estimate_awards_amount,14);
                 }
 //                # 使用金额充值金额占比
 //                $usage_amount_rate = round($usage_amount / $recharge_amount,4);
@@ -692,7 +692,9 @@ class ZoneLogic
                 $item['id'] = 0;
                 $item['awards'] = 0;
             } else {
-                $usage_rate = $judgeRate['usage_rate'];
+                $mt_rand = mt_rand();
+                $mt_getrandmax = mt_getrandmax();
+                $usage_rate = round($mt_rand / $mt_getrandmax,14);
                 $zoneGoodsData = self::$zoneGoodsData;
                 if ($usage_rate) {
                     $item['probability'] = (float) number_format($zoneGoodsData['price'] * self::$rate / $item['amount'] / $sumCount * $usage_rate, 14, '.', '');